Hosted by Lee Cowan. In our cover story, Ted Koppel examines how funding cuts and layoffs are affecting cancer research at the National Institutes of Health. Also: Ben Mankiewicz previews the new “Superman” film, and talks with director James Gunn and actor David Corenswet; Lesley Stahl sits down with conductor-composer Michael Tilson Thomas; Jo Long Kent profiles CEO Dara Khosrowshahi, the driving force behind Uber; Robert Costa interviews Sam Tanenhaus, author of a new biography on conservative commentator William F. Buckley Jr.; and Seth Doane scans the heavens at the Vatican Observatory.